11321032031 has 4 divisors (see below), whose sum is σ = 11384278200. Its totient is φ = 11257785864.

The previous prime is 11321032013. The next prime is 11321032033. The reversal of 11321032031 is 13023012311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13023012311 = 157 ⋅82949123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321032031 is a prime.

It is a super-2 number, since 2×11321032031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321032033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31622816 + ... + 31623173.

It is an arithmetic number, because the mean of its divisors is an integer number (2846069550).

Almost surely, 2^11321032031 is an apocalyptic number.

11321032031 is a deficient number, since it is larger than the sum of its proper divisors (63246169).

11321032031 is an equidigital number, since it uses as much as digits as its factorization.

11321032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63246168.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11321032031 its reverse (13023012311), we get a palindrome (24344044342).

The spelling of 11321032031 in words is "eleven billion, three hundred twenty-one million, thirty-two thousand, thirty-one".